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<div class="title">global.h</div>  </div>
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<a href="global_8h.html">Go to the documentation of this file.</a><div class="fragment"><div class="line"><a name="l00001"></a><span class="lineno">    1</span>&#160;<span class="comment">/* dtls -- a very basic DTLS implementation</span></div>
<div class="line"><a name="l00002"></a><span class="lineno">    2</span>&#160;<span class="comment"> *</span></div>
<div class="line"><a name="l00003"></a><span class="lineno">    3</span>&#160;<span class="comment"> * Copyright (C) 2011--2014 Olaf Bergmann &lt;bergmann@tzi.org&gt;</span></div>
<div class="line"><a name="l00004"></a><span class="lineno">    4</span>&#160;<span class="comment"> *</span></div>
<div class="line"><a name="l00005"></a><span class="lineno">    5</span>&#160;<span class="comment"> * Permission is hereby granted, free of charge, to any person</span></div>
<div class="line"><a name="l00006"></a><span class="lineno">    6</span>&#160;<span class="comment"> * obtaining a copy of this software and associated documentation</span></div>
<div class="line"><a name="l00007"></a><span class="lineno">    7</span>&#160;<span class="comment"> * files (the &quot;Software&quot;), to deal in the Software without</span></div>
<div class="line"><a name="l00008"></a><span class="lineno">    8</span>&#160;<span class="comment"> * restriction, including without limitation the rights to use, copy,</span></div>
<div class="line"><a name="l00009"></a><span class="lineno">    9</span>&#160;<span class="comment"> * modify, merge, publish, distribute, sublicense, and/or sell copies</span></div>
<div class="line"><a name="l00010"></a><span class="lineno">   10</span>&#160;<span class="comment"> * of the Software, and to permit persons to whom the Software is</span></div>
<div class="line"><a name="l00011"></a><span class="lineno">   11</span>&#160;<span class="comment"> * furnished to do so, subject to the following conditions:</span></div>
<div class="line"><a name="l00012"></a><span class="lineno">   12</span>&#160;<span class="comment"> *</span></div>
<div class="line"><a name="l00013"></a><span class="lineno">   13</span>&#160;<span class="comment"> * The above copyright notice and this permission notice shall be</span></div>
<div class="line"><a name="l00014"></a><span class="lineno">   14</span>&#160;<span class="comment"> * included in all copies or substantial portions of the Software.</span></div>
<div class="line"><a name="l00015"></a><span class="lineno">   15</span>&#160;<span class="comment"> *</span></div>
<div class="line"><a name="l00016"></a><span class="lineno">   16</span>&#160;<span class="comment"> * THE SOFTWARE IS PROVIDED &quot;AS IS&quot;, WITHOUT WARRANTY OF ANY KIND,</span></div>
<div class="line"><a name="l00017"></a><span class="lineno">   17</span>&#160;<span class="comment"> * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF</span></div>
<div class="line"><a name="l00018"></a><span class="lineno">   18</span>&#160;<span class="comment"> * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND</span></div>
<div class="line"><a name="l00019"></a><span class="lineno">   19</span>&#160;<span class="comment"> * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS</span></div>
<div class="line"><a name="l00020"></a><span class="lineno">   20</span>&#160;<span class="comment"> * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN</span></div>
<div class="line"><a name="l00021"></a><span class="lineno">   21</span>&#160;<span class="comment"> * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN</span></div>
<div class="line"><a name="l00022"></a><span class="lineno">   22</span>&#160;<span class="comment"> * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE</span></div>
<div class="line"><a name="l00023"></a><span class="lineno">   23</span>&#160;<span class="comment"> * SOFTWARE.</span></div>
<div class="line"><a name="l00024"></a><span class="lineno">   24</span>&#160;<span class="comment"> */</span></div>
<div class="line"><a name="l00025"></a><span class="lineno">   25</span>&#160;</div>
<div class="line"><a name="l00026"></a><span class="lineno">   26</span>&#160;<span class="preprocessor">#ifndef _DTLS_GLOBAL_H_</span></div>
<div class="line"><a name="l00027"></a><span class="lineno">   27</span>&#160;<span class="preprocessor"></span><span class="preprocessor">#define _DTLS_GLOBAL_H_</span></div>
<div class="line"><a name="l00028"></a><span class="lineno">   28</span>&#160;<span class="preprocessor"></span></div>
<div class="line"><a name="l00029"></a><span class="lineno">   29</span>&#160;<span class="preprocessor">#include &lt;stdlib.h&gt;</span></div>
<div class="line"><a name="l00030"></a><span class="lineno">   30</span>&#160;<span class="preprocessor">#include &lt;sys/types.h&gt;</span></div>
<div class="line"><a name="l00031"></a><span class="lineno">   31</span>&#160;</div>
<div class="line"><a name="l00032"></a><span class="lineno">   32</span>&#160;<span class="preprocessor">#include &quot;<a class="code" href="tinydtls_8h.html">tinydtls.h</a>&quot;</span></div>
<div class="line"><a name="l00033"></a><span class="lineno">   33</span>&#160;</div>
<div class="line"><a name="l00034"></a><span class="lineno">   34</span>&#160;<span class="preprocessor">#ifndef DTLSv12</span></div>
<div class="line"><a name="l00035"></a><span class="lineno">   35</span>&#160;<span class="preprocessor"></span><span class="comment">/* The current version of tinyDTLS supports DTLSv1.2 only. */</span></div>
<div class="line"><a name="l00036"></a><span class="lineno"><a class="line" href="global_8h.html#a6b9b983a346a3e94eff205f8eab2bce0">   36</a></span>&#160;<span class="preprocessor">#define DTLSv12 1</span></div>
<div class="line"><a name="l00037"></a><span class="lineno">   37</span>&#160;<span class="preprocessor"></span><span class="preprocessor">#endif</span></div>
<div class="line"><a name="l00038"></a><span class="lineno">   38</span>&#160;<span class="preprocessor"></span></div>
<div class="line"><a name="l00039"></a><span class="lineno">   39</span>&#160;<span class="preprocessor">#ifndef WITH_SHA256</span></div>
<div class="line"><a name="l00040"></a><span class="lineno">   40</span>&#160;<span class="preprocessor"></span><span class="comment">/* The current version of tinyDTLS supports DTLSv1.2 with SHA256 PRF</span></div>
<div class="line"><a name="l00041"></a><span class="lineno">   41</span>&#160;<span class="comment">   only. */</span></div>
<div class="line"><a name="l00042"></a><span class="lineno"><a class="line" href="global_8h.html#a4da6212f220f78c713aa5e91f989e7d7">   42</a></span>&#160;<span class="preprocessor">#define WITH_SHA256 1</span></div>
<div class="line"><a name="l00043"></a><span class="lineno">   43</span>&#160;<span class="preprocessor"></span><span class="preprocessor">#endif</span></div>
<div class="line"><a name="l00044"></a><span class="lineno">   44</span>&#160;<span class="preprocessor"></span></div>
<div class="line"><a name="l00045"></a><span class="lineno">   45</span>&#160;<span class="comment">/* Define our own types as at least uint32_t does not work on my amd64. */</span></div>
<div class="line"><a name="l00046"></a><span class="lineno">   46</span>&#160;</div>
<div class="line"><a name="l00047"></a><span class="lineno"><a class="line" href="global_8h.html#adde6aaee8457bee49c2a92621fe22b79">   47</a></span>&#160;<span class="keyword">typedef</span> <span class="keywordtype">unsigned</span> <span class="keywordtype">char</span> <a class="code" href="global_8h.html#adde6aaee8457bee49c2a92621fe22b79">uint8</a>;</div>
<div class="line"><a name="l00048"></a><span class="lineno"><a class="line" href="global_8h.html#a5e90b30856b81913af89565b55751da5">   48</a></span>&#160;<span class="keyword">typedef</span> <span class="keywordtype">unsigned</span> <span class="keywordtype">char</span> <a class="code" href="global_8h.html#a5e90b30856b81913af89565b55751da5">uint16</a>[2];</div>
<div class="line"><a name="l00049"></a><span class="lineno"><a class="line" href="global_8h.html#aabc56baaf04f922a1ea0dda7691fec0a">   49</a></span>&#160;<span class="keyword">typedef</span> <span class="keywordtype">unsigned</span> <span class="keywordtype">char</span> <a class="code" href="global_8h.html#aabc56baaf04f922a1ea0dda7691fec0a">uint24</a>[3];</div>
<div class="line"><a name="l00050"></a><span class="lineno"><a class="line" href="global_8h.html#ab27072920285996a3e16d2e5e3d366be">   50</a></span>&#160;<span class="keyword">typedef</span> <span class="keywordtype">unsigned</span> <span class="keywordtype">char</span> <a class="code" href="global_8h.html#ab27072920285996a3e16d2e5e3d366be">uint32</a>[4];</div>
<div class="line"><a name="l00051"></a><span class="lineno"><a class="line" href="global_8h.html#a0749f1df578b26eccab986b0d8abaa56">   51</a></span>&#160;<span class="keyword">typedef</span> <span class="keywordtype">unsigned</span> <span class="keywordtype">char</span> <a class="code" href="global_8h.html#a0749f1df578b26eccab986b0d8abaa56">uint48</a>[6];</div>
<div class="line"><a name="l00052"></a><span class="lineno">   52</span>&#160;</div>
<div class="line"><a name="l00053"></a><span class="lineno">   53</span>&#160;<span class="preprocessor">#ifndef DTLS_MAX_BUF</span></div>
<div class="line"><a name="l00054"></a><span class="lineno">   54</span>&#160;<span class="preprocessor"></span></div>
<div class="line"><a name="l00057"></a><span class="lineno">   57</span>&#160;<span class="preprocessor">#ifdef WITH_CONTIKI</span></div>
<div class="line"><a name="l00058"></a><span class="lineno">   58</span>&#160;<span class="preprocessor"></span><span class="preprocessor">#ifdef DTLS_ECC</span></div>
<div class="line"><a name="l00059"></a><span class="lineno">   59</span>&#160;<span class="preprocessor"></span><span class="preprocessor">#define DTLS_MAX_BUF 200</span></div>
<div class="line"><a name="l00060"></a><span class="lineno">   60</span>&#160;<span class="preprocessor"></span><span class="preprocessor">#else </span><span class="comment">/* DTLS_ECC */</span><span class="preprocessor"></span></div>
<div class="line"><a name="l00061"></a><span class="lineno">   61</span>&#160;<span class="preprocessor"></span><span class="preprocessor">#define DTLS_MAX_BUF 100</span></div>
<div class="line"><a name="l00062"></a><span class="lineno">   62</span>&#160;<span class="preprocessor"></span><span class="preprocessor">#endif </span><span class="comment">/* DTLS_ECC */</span><span class="preprocessor"></span></div>
<div class="line"><a name="l00063"></a><span class="lineno">   63</span>&#160;<span class="preprocessor"></span><span class="preprocessor">#else </span><span class="comment">/* WITH_CONTIKI */</span><span class="preprocessor"></span></div>
<div class="line"><a name="l00064"></a><span class="lineno"><a class="line" href="global_8h.html#acdbfba15eb1a5692e177d582b4ca1583">   64</a></span>&#160;<span class="preprocessor"></span><span class="preprocessor">#define DTLS_MAX_BUF 1400</span></div>
<div class="line"><a name="l00065"></a><span class="lineno">   65</span>&#160;<span class="preprocessor"></span><span class="preprocessor">#endif </span><span class="comment">/* WITH_CONTIKI */</span><span class="preprocessor"></span></div>
<div class="line"><a name="l00066"></a><span class="lineno">   66</span>&#160;<span class="preprocessor"></span><span class="preprocessor">#endif</span></div>
<div class="line"><a name="l00067"></a><span class="lineno">   67</span>&#160;<span class="preprocessor"></span></div>
<div class="line"><a name="l00068"></a><span class="lineno">   68</span>&#160;<span class="preprocessor">#ifndef DTLS_DEFAULT_MAX_RETRANSMIT</span></div>
<div class="line"><a name="l00069"></a><span class="lineno">   69</span>&#160;<span class="preprocessor"></span></div>
<div class="line"><a name="l00070"></a><span class="lineno"><a class="line" href="global_8h.html#a9fc59fb51c2e3cb4da6fb19bc8cad080">   70</a></span>&#160;<span class="preprocessor">#define DTLS_DEFAULT_MAX_RETRANSMIT 7</span></div>
<div class="line"><a name="l00071"></a><span class="lineno">   71</span>&#160;<span class="preprocessor"></span><span class="preprocessor">#endif</span></div>
<div class="line"><a name="l00072"></a><span class="lineno">   72</span>&#160;<span class="preprocessor"></span></div>
<div class="line"><a name="l00074"></a><span class="lineno"><a class="line" href="global_8h.html#ada7e71454d685b693df45b2c1ea0c59b">   74</a></span>&#160;<span class="keyword">typedef</span> <span class="keyword">enum</span> { </div>
<div class="line"><a name="l00075"></a><span class="lineno"><a class="line" href="global_8h.html#ada7e71454d685b693df45b2c1ea0c59bacf33de998fd00f096eebbb0742d80abd">   75</a></span>&#160;  <a class="code" href="global_8h.html#ada7e71454d685b693df45b2c1ea0c59bacf33de998fd00f096eebbb0742d80abd">TLS_NULL_WITH_NULL_NULL</a> = 0x0000,   </div>
<div class="line"><a name="l00076"></a><span class="lineno"><a class="line" href="global_8h.html#ada7e71454d685b693df45b2c1ea0c59ba39a3062f136db88f648ce514a591fac8">   76</a></span>&#160;  <a class="code" href="global_8h.html#ada7e71454d685b693df45b2c1ea0c59ba39a3062f136db88f648ce514a591fac8">TLS_PSK_WITH_AES_128_CCM_8</a> = 0xC0A8, </div>
<div class="line"><a name="l00077"></a><span class="lineno"><a class="line" href="global_8h.html#ada7e71454d685b693df45b2c1ea0c59ba197892e216f63ddbc91c2b006a2d4c1e">   77</a></span>&#160;  <a class="code" href="global_8h.html#ada7e71454d685b693df45b2c1ea0c59ba197892e216f63ddbc91c2b006a2d4c1e">TLS_ECDHE_ECDSA_WITH_AES_128_CCM_8</a> = 0xC0AE </div>
<div class="line"><a name="l00078"></a><span class="lineno">   78</span>&#160;} <a class="code" href="global_8h.html#ada7e71454d685b693df45b2c1ea0c59b">dtls_cipher_t</a>;</div>
<div class="line"><a name="l00079"></a><span class="lineno">   79</span>&#160;</div>
<div class="line"><a name="l00081"></a><span class="lineno"><a class="line" href="global_8h.html#a1ff555e0b1443c4cb4d17ac2161d89b2">   81</a></span>&#160;<span class="keyword">typedef</span> <span class="keyword">enum</span> {</div>
<div class="line"><a name="l00082"></a><span class="lineno"><a class="line" href="global_8h.html#a1ff555e0b1443c4cb4d17ac2161d89b2ac5b79ee16e8c0e46873fa63fdb1ab9ca">   82</a></span>&#160;  <a class="code" href="global_8h.html#a1ff555e0b1443c4cb4d17ac2161d89b2ac5b79ee16e8c0e46873fa63fdb1ab9ca">TLS_COMPRESSION_NULL</a> = 0x0000     <span class="comment">/* NULL compression */</span></div>
<div class="line"><a name="l00083"></a><span class="lineno">   83</span>&#160;} <a class="code" href="global_8h.html#a1ff555e0b1443c4cb4d17ac2161d89b2">dtls_compression_t</a>;</div>
<div class="line"><a name="l00084"></a><span class="lineno">   84</span>&#160;</div>
<div class="line"><a name="l00085"></a><span class="lineno"><a class="line" href="global_8h.html#a7e080d630a40510f655bf6982c555063">   85</a></span>&#160;<span class="preprocessor">#define TLS_EXT_ELLIPTIC_CURVES     10 </span><span class="comment">/* see RFC 4492 */</span><span class="preprocessor"></span></div>
<div class="line"><a name="l00086"></a><span class="lineno"><a class="line" href="global_8h.html#a5d17863db920927ef8160547541b58e3">   86</a></span>&#160;<span class="preprocessor"></span><span class="preprocessor">#define TLS_EXT_EC_POINT_FORMATS    11 </span><span class="comment">/* see RFC 4492 */</span><span class="preprocessor"></span></div>
<div class="line"><a name="l00087"></a><span class="lineno"><a class="line" href="global_8h.html#a0249393d6894a15ac56962b2335add24">   87</a></span>&#160;<span class="preprocessor"></span><span class="preprocessor">#define TLS_EXT_SIG_HASH_ALGO       13 </span><span class="comment">/* see RFC 5246 */</span><span class="preprocessor"></span></div>
<div class="line"><a name="l00088"></a><span class="lineno"><a class="line" href="global_8h.html#a0074adc0b2543a913a597e510caf27b0">   88</a></span>&#160;<span class="preprocessor"></span><span class="preprocessor">#define TLS_EXT_CLIENT_CERTIFICATE_TYPE 19 </span><span class="comment">/* see RFC 7250 */</span><span class="preprocessor"></span></div>
<div class="line"><a name="l00089"></a><span class="lineno"><a class="line" href="global_8h.html#ad465b86d1841ddd6c2209ff304895a95">   89</a></span>&#160;<span class="preprocessor"></span><span class="preprocessor">#define TLS_EXT_SERVER_CERTIFICATE_TYPE 20 </span><span class="comment">/* see RFC 7250 */</span><span class="preprocessor"></span></div>
<div class="line"><a name="l00090"></a><span class="lineno"><a class="line" href="global_8h.html#ae136afe82bd9031a4c1c604de0cb0118">   90</a></span>&#160;<span class="preprocessor"></span><span class="preprocessor">#define TLS_EXT_ENCRYPT_THEN_MAC    22 </span><span class="comment">/* see RFC 7366 */</span><span class="preprocessor"></span></div>
<div class="line"><a name="l00091"></a><span class="lineno">   91</span>&#160;<span class="preprocessor"></span></div>
<div class="line"><a name="l00092"></a><span class="lineno"><a class="line" href="global_8h.html#af36d51830256b7d1bf4dbaa8590c19e4">   92</a></span>&#160;<span class="preprocessor">#define TLS_CERT_TYPE_RAW_PUBLIC_KEY    2 </span><span class="comment">/* see RFC 7250 */</span><span class="preprocessor"></span></div>
<div class="line"><a name="l00093"></a><span class="lineno">   93</span>&#160;<span class="preprocessor"></span></div>
<div class="line"><a name="l00094"></a><span class="lineno"><a class="line" href="global_8h.html#a8095691f33c0ce6b22d205640ccc9417">   94</a></span>&#160;<span class="preprocessor">#define TLS_EXT_ELLIPTIC_CURVES_SECP256R1   23 </span><span class="comment">/* see RFC 4492 */</span><span class="preprocessor"></span></div>
<div class="line"><a name="l00095"></a><span class="lineno">   95</span>&#160;<span class="preprocessor"></span></div>
<div class="line"><a name="l00096"></a><span class="lineno"><a class="line" href="global_8h.html#af086ed2d0aea096be56bf7e46f8f72a6">   96</a></span>&#160;<span class="preprocessor">#define TLS_EXT_EC_POINT_FORMATS_UNCOMPRESSED   0 </span><span class="comment">/* see RFC 4492 */</span><span class="preprocessor"></span></div>
<div class="line"><a name="l00097"></a><span class="lineno">   97</span>&#160;<span class="preprocessor"></span></div>
<div class="line"><a name="l00098"></a><span class="lineno"><a class="line" href="global_8h.html#ac97469cc46ceeb148ee92f47a26ebcf6">   98</a></span>&#160;<span class="preprocessor">#define TLS_EC_CURVE_TYPE_NAMED_CURVE       3 </span><span class="comment">/* see RFC 4492 */</span><span class="preprocessor"></span></div>
<div class="line"><a name="l00099"></a><span class="lineno">   99</span>&#160;<span class="preprocessor"></span></div>
<div class="line"><a name="l00100"></a><span class="lineno"><a class="line" href="global_8h.html#aaace8dce4341d910140609a96bb300db">  100</a></span>&#160;<span class="preprocessor">#define TLS_CLIENT_CERTIFICATE_TYPE_ECDSA_SIGN  64 </span><span class="comment">/* see RFC 4492 */</span><span class="preprocessor"></span></div>
<div class="line"><a name="l00101"></a><span class="lineno">  101</span>&#160;<span class="preprocessor"></span></div>
<div class="line"><a name="l00102"></a><span class="lineno"><a class="line" href="global_8h.html#aa347771eab2eabd24c4b9311fa61c4c9">  102</a></span>&#160;<span class="preprocessor">#define TLS_EXT_SIG_HASH_ALGO_SHA256        4 </span><span class="comment">/* see RFC 5246 */</span><span class="preprocessor"></span></div>
<div class="line"><a name="l00103"></a><span class="lineno"><a class="line" href="global_8h.html#af126227a026a7af436a4323db6d02ecc">  103</a></span>&#160;<span class="preprocessor"></span><span class="preprocessor">#define TLS_EXT_SIG_HASH_ALGO_ECDSA     3 </span><span class="comment">/* see RFC 5246 */</span><span class="preprocessor"></span></div>
<div class="line"><a name="l00104"></a><span class="lineno">  104</span>&#160;<span class="preprocessor"></span></div>
<div class="line"><a name="l00108"></a><span class="lineno">  108</span>&#160;<span class="keyword">static</span> <span class="keyword">inline</span> <span class="keywordtype">void</span></div>
<div class="line"><a name="l00109"></a><span class="lineno"><a class="line" href="global_8h.html#a6c31c5d8a0fe09547a192100d2a00dc5">  109</a></span>&#160;<a class="code" href="global_8h.html#a6c31c5d8a0fe09547a192100d2a00dc5">memxor</a>(<span class="keywordtype">unsigned</span> <span class="keywordtype">char</span> *x, <span class="keyword">const</span> <span class="keywordtype">unsigned</span> <span class="keywordtype">char</span> *y, <span class="keywordtype">size_t</span> n) {</div>
<div class="line"><a name="l00110"></a><span class="lineno">  110</span>&#160;  <span class="keywordflow">while</span>(n--) {</div>
<div class="line"><a name="l00111"></a><span class="lineno">  111</span>&#160;    *x ^= *y;</div>
<div class="line"><a name="l00112"></a><span class="lineno">  112</span>&#160;    x++; y++;</div>
<div class="line"><a name="l00113"></a><span class="lineno">  113</span>&#160;  }</div>
<div class="line"><a name="l00114"></a><span class="lineno">  114</span>&#160;}</div>
<div class="line"><a name="l00115"></a><span class="lineno">  115</span>&#160;</div>
<div class="line"><a name="l00126"></a><span class="lineno">  126</span>&#160;<span class="keyword">static</span> <span class="keyword">inline</span> <span class="keywordtype">int</span></div>
<div class="line"><a name="l00127"></a><span class="lineno"><a class="line" href="global_8h.html#a8277c276ecd5cd2f998f08fd344d90ef">  127</a></span>&#160;<a class="code" href="global_8h.html#a8277c276ecd5cd2f998f08fd344d90ef">equals</a>(<span class="keywordtype">unsigned</span> <span class="keywordtype">char</span> *a, <span class="keywordtype">unsigned</span> <span class="keywordtype">char</span> *b, <span class="keywordtype">size_t</span> len) {</div>
<div class="line"><a name="l00128"></a><span class="lineno">  128</span>&#160;  <span class="keywordtype">int</span> result = 1;</div>
<div class="line"><a name="l00129"></a><span class="lineno">  129</span>&#160;  <span class="keywordflow">while</span> (len--) {</div>
<div class="line"><a name="l00130"></a><span class="lineno">  130</span>&#160;    result &amp;= (*a++ == *b++);</div>
<div class="line"><a name="l00131"></a><span class="lineno">  131</span>&#160;  }</div>
<div class="line"><a name="l00132"></a><span class="lineno">  132</span>&#160;  <span class="keywordflow">return</span> result;</div>
<div class="line"><a name="l00133"></a><span class="lineno">  133</span>&#160;}</div>
<div class="line"><a name="l00134"></a><span class="lineno">  134</span>&#160;</div>
<div class="line"><a name="l00135"></a><span class="lineno">  135</span>&#160;<span class="preprocessor">#ifdef HAVE_FLS</span></div>
<div class="line"><a name="l00136"></a><span class="lineno">  136</span>&#160;<span class="preprocessor"></span><span class="preprocessor">#define dtls_fls(i) fls(i)</span></div>
<div class="line"><a name="l00137"></a><span class="lineno">  137</span>&#160;<span class="preprocessor"></span><span class="preprocessor">#else</span></div>
<div class="line"><a name="l00138"></a><span class="lineno">  138</span>&#160;<span class="preprocessor"></span><span class="keyword">static</span> <span class="keyword">inline</span> <span class="keywordtype">int</span> </div>
<div class="line"><a name="l00139"></a><span class="lineno"><a class="line" href="global_8h.html#ae10dcc6b71efe025c990ac2f3d8a48b8">  139</a></span>&#160;<a class="code" href="global_8h.html#ae10dcc6b71efe025c990ac2f3d8a48b8">dtls_fls</a>(<span class="keywordtype">unsigned</span> <span class="keywordtype">int</span> i) {</div>
<div class="line"><a name="l00140"></a><span class="lineno">  140</span>&#160;  <span class="keywordtype">int</span> n;</div>
<div class="line"><a name="l00141"></a><span class="lineno">  141</span>&#160;  <span class="keywordflow">for</span> (n = 0; i; n++)</div>
<div class="line"><a name="l00142"></a><span class="lineno">  142</span>&#160;    i &gt;&gt;= 1;</div>
<div class="line"><a name="l00143"></a><span class="lineno">  143</span>&#160;  <span class="keywordflow">return</span> n;</div>
<div class="line"><a name="l00144"></a><span class="lineno">  144</span>&#160;}</div>
<div class="line"><a name="l00145"></a><span class="lineno">  145</span>&#160;<span class="preprocessor">#endif </span><span class="comment">/* HAVE_FLS */</span><span class="preprocessor"></span></div>
<div class="line"><a name="l00146"></a><span class="lineno">  146</span>&#160;<span class="preprocessor"></span></div>
<div class="line"><a name="l00147"></a><span class="lineno">  147</span>&#160;<span class="preprocessor">#endif </span><span class="comment">/* _DTLS_GLOBAL_H_ */</span><span class="preprocessor"></span></div>
<div class="ttc" id="global_8h_html_a1ff555e0b1443c4cb4d17ac2161d89b2ac5b79ee16e8c0e46873fa63fdb1ab9ca"><div class="ttname"><a href="global_8h.html#a1ff555e0b1443c4cb4d17ac2161d89b2ac5b79ee16e8c0e46873fa63fdb1ab9ca">TLS_COMPRESSION_NULL</a></div><div class="ttdef"><b>Definition:</b> <a href="global_8h_source.html#l00082">global.h:82</a></div></div>
<div class="ttc" id="tinydtls_8h_html"><div class="ttname"><a href="tinydtls_8h.html">tinydtls.h</a></div><div class="ttdoc">public tinydtls API </div></div>
<div class="ttc" id="global_8h_html_a1ff555e0b1443c4cb4d17ac2161d89b2"><div class="ttname"><a href="global_8h.html#a1ff555e0b1443c4cb4d17ac2161d89b2">dtls_compression_t</a></div><div class="ttdeci">dtls_compression_t</div><div class="ttdef"><b>Definition:</b> <a href="global_8h_source.html#l00081">global.h:81</a></div></div>
<div class="ttc" id="global_8h_html_a6c31c5d8a0fe09547a192100d2a00dc5"><div class="ttname"><a href="global_8h.html#a6c31c5d8a0fe09547a192100d2a00dc5">memxor</a></div><div class="ttdeci">static void memxor(unsigned char *x, const unsigned char *y, size_t n)</div><div class="ttdef"><b>Definition:</b> <a href="global_8h_source.html#l00109">global.h:109</a></div></div>
<div class="ttc" id="global_8h_html_ada7e71454d685b693df45b2c1ea0c59ba39a3062f136db88f648ce514a591fac8"><div class="ttname"><a href="global_8h.html#ada7e71454d685b693df45b2c1ea0c59ba39a3062f136db88f648ce514a591fac8">TLS_PSK_WITH_AES_128_CCM_8</a></div><div class="ttdef"><b>Definition:</b> <a href="global_8h_source.html#l00076">global.h:76</a></div></div>
<div class="ttc" id="global_8h_html_a0749f1df578b26eccab986b0d8abaa56"><div class="ttname"><a href="global_8h.html#a0749f1df578b26eccab986b0d8abaa56">uint48</a></div><div class="ttdeci">unsigned char uint48[6]</div><div class="ttdef"><b>Definition:</b> <a href="global_8h_source.html#l00051">global.h:51</a></div></div>
<div class="ttc" id="global_8h_html_aabc56baaf04f922a1ea0dda7691fec0a"><div class="ttname"><a href="global_8h.html#aabc56baaf04f922a1ea0dda7691fec0a">uint24</a></div><div class="ttdeci">unsigned char uint24[3]</div><div class="ttdef"><b>Definition:</b> <a href="global_8h_source.html#l00049">global.h:49</a></div></div>
<div class="ttc" id="global_8h_html_adde6aaee8457bee49c2a92621fe22b79"><div class="ttname"><a href="global_8h.html#adde6aaee8457bee49c2a92621fe22b79">uint8</a></div><div class="ttdeci">unsigned char uint8</div><div class="ttdef"><b>Definition:</b> <a href="global_8h_source.html#l00047">global.h:47</a></div></div>
<div class="ttc" id="global_8h_html_ada7e71454d685b693df45b2c1ea0c59ba197892e216f63ddbc91c2b006a2d4c1e"><div class="ttname"><a href="global_8h.html#ada7e71454d685b693df45b2c1ea0c59ba197892e216f63ddbc91c2b006a2d4c1e">TLS_ECDHE_ECDSA_WITH_AES_128_CCM_8</a></div><div class="ttdef"><b>Definition:</b> <a href="global_8h_source.html#l00077">global.h:77</a></div></div>
<div class="ttc" id="global_8h_html_ada7e71454d685b693df45b2c1ea0c59bacf33de998fd00f096eebbb0742d80abd"><div class="ttname"><a href="global_8h.html#ada7e71454d685b693df45b2c1ea0c59bacf33de998fd00f096eebbb0742d80abd">TLS_NULL_WITH_NULL_NULL</a></div><div class="ttdef"><b>Definition:</b> <a href="global_8h_source.html#l00075">global.h:75</a></div></div>
<div class="ttc" id="global_8h_html_ada7e71454d685b693df45b2c1ea0c59b"><div class="ttname"><a href="global_8h.html#ada7e71454d685b693df45b2c1ea0c59b">dtls_cipher_t</a></div><div class="ttdeci">dtls_cipher_t</div><div class="ttdef"><b>Definition:</b> <a href="global_8h_source.html#l00074">global.h:74</a></div></div>
<div class="ttc" id="global_8h_html_a8277c276ecd5cd2f998f08fd344d90ef"><div class="ttname"><a href="global_8h.html#a8277c276ecd5cd2f998f08fd344d90ef">equals</a></div><div class="ttdeci">static int equals(unsigned char *a, unsigned char *b, size_t len)</div><div class="ttdef"><b>Definition:</b> <a href="global_8h_source.html#l00127">global.h:127</a></div></div>
<div class="ttc" id="global_8h_html_ab27072920285996a3e16d2e5e3d366be"><div class="ttname"><a href="global_8h.html#ab27072920285996a3e16d2e5e3d366be">uint32</a></div><div class="ttdeci">unsigned char uint32[4]</div><div class="ttdef"><b>Definition:</b> <a href="global_8h_source.html#l00050">global.h:50</a></div></div>
<div class="ttc" id="global_8h_html_ae10dcc6b71efe025c990ac2f3d8a48b8"><div class="ttname"><a href="global_8h.html#ae10dcc6b71efe025c990ac2f3d8a48b8">dtls_fls</a></div><div class="ttdeci">static int dtls_fls(unsigned int i)</div><div class="ttdef"><b>Definition:</b> <a href="global_8h_source.html#l00139">global.h:139</a></div></div>
<div class="ttc" id="global_8h_html_a5e90b30856b81913af89565b55751da5"><div class="ttname"><a href="global_8h.html#a5e90b30856b81913af89565b55751da5">uint16</a></div><div class="ttdeci">unsigned char uint16[2]</div><div class="ttdef"><b>Definition:</b> <a href="global_8h_source.html#l00048">global.h:48</a></div></div>
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